| http://www.w3.org/ns/prov#value | - Examples of optional ingredients include antioxidants, such as vitamin E, which can be used as a biocompatible antioxidant and mediator of macrophage attack designed to destroy the implant in vivo. [0149] Other suitable ingredients include dyes, such as ???Green GLS Dye??? (available from Clarian Corp., Charlotte, N.C.) that can be added (e.g., at a concentration of about 0.01% to about 0.05%, by
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